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★ Eight-year summer homework answer ★
★ Learning plan for the new semester of junior high school ★
★ What are the good study habits ★
▼ Eighth grade summer homework answer
Physics:
First, practice.
1. Left side increase
2. Water alcohol
3. 1.93g/cm？ Gold 0.29
4. Right 34.4
5. 1× 10? The mass of a cubic meter of copper is 8.9× 10? kilogram
6. Small and big
7.2.5× 10? 255
8. Alcohol water
9.6∶ 1
10.4.6
1.220 is not higher than 36.
2. 14.5
3. Become bigger and brighter.
4. 10 10 10 is dimmed.
5. Open circuit and short circuit
6. ammeter and voltmeter
7~ 13.CCADAAC
14.
15. Omit
16.( 1) The voltage of the fruit battery is related to the kind of fruit.
The voltage of the fruit battery is related to the insertion depth.
(2) The table is omitted
(3) A voltmeter is connected in parallel in the circuit, and if the pointer of the voltmeter deflects normally, the voltmeter is the positive pole of the circuit;
If the pointer of the voltmeter deflects reversely, the voltmeter is positive and the circuit is negative.
17. Simulate a sliding rheostat. Put the slider on the resistance value and the light will light up.
Chapter VII
1. 10 12/5
2. Long length and small cross-sectional area
3. greater than
4.3A 12v
5.3:22:3
6. Less than
7. 126
8.30.6
9~ 15.DCBDDCA
16. Omit
17. Omit
18. Omit
19.( 1)2v3v6v
(2) 1:3
(3) When the voltage and current are constant, the current is inversely proportional to the resistance.
20.
2 1.( 1) omitted.
(2) When the resistance is constant, the current is proportional to the voltage.
When the voltage is constant, the current is inversely proportional to the resistance.
Chapter VIII
1. electric power w
2. 1527000
3. 1 1837. 1
4.40
5.3:22:3
6.42
7.250 144000
8~ 15DDCDDCBD
16.( 1)5A
(2) The fusing current of the 0.25a fuse is 10A, and the current is lower than 10A when the human body gets an electric shock.
17.( 1) omitted
(2) Biological activated carbon
(3)0.36 1.3
18. Omit
19.1) 2a (2)110 Euro
20.( 1)5.4A(2)225600 angle
2 1. number
22( 1) 1(2)44 euros (3) 13200 joules
23. Omission
24. Omission
25.( 1) Omit
(2) Left 0.240.6
(3) 10Our 1.5A。
26.( 1) Easy to get an electric shock.
(2) If one lamp is broken in parallel, it will not affect other lamps.
27.( 1)99w(2)59400 Joules.
History:
Victory of People's Liberation War and Modern Economic and Social Life
First, knowledge combing
Chongqing; Central plains; Dabie mountain; Cross the river; World war I; Zhang Wei; Xinhai;
Second, consolidate the practice.
/kloc-0 1.C2.C3.D4.B5.C6.⑴ (1) Chongqing negotiation; War of Resistance against Japanese Aggression's victory; Reach a double ten agreement. (2) Deceiving the people in order to gain more time to prepare for civil war; In order to strive for peace as much as possible, expose Chiang Kai-shek's plot to fake peace.
The establishment and consolidation of People's Republic of China (PRC)
First, knowledge combing
1. founding ceremony; ; Resist US aggression and aid Korea; Land reform; Resist US aggression and aid Korea; Land reform; 2. History of China; Independence; Stand up; Growth; Encourage; 3. unification; Great unity;
4. 1950; Resist U.S. aggression and aid Korea, protect the country and defend the country; Paiyaa
5. The feudal landlord class; Farmers; Feudal land system; Landlord class; Productivity;
Second, consolidate the practice.
1 .a2.b3.c4.d5.b6.a7.b8.d9. (1) Figure1Time:1949; Event: New China was founded.
Figure 2 Time:1950 ——1952; Event: Map III of Land Reform Movement Time: 1950—1953 July; Event: War to Resist US Aggression and Aid Korea
(2) Significance of the founding of New China: Domestic significance: The founding of People's Republic of China (PRC) opened a new era in the history of China. Since then, China has ended the humiliating history of being invaded and enslaved for more than 100 years and truly became an independent country; The people of China have since stood up and become the masters of the country. World Significance: The establishment of New China has strengthened the forces of world peace, democracy and socialism, and inspired the liberation struggle of the oppressed nations and people in the world.
The historical significance of land reform: the completion of land reform completely destroyed the feudal land system that existed in China for more than 2,000 years, and the landlord class was also eliminated; The peasants turned over, got the land and became the owners of the land. This consolidated the people's political power, greatly liberated the rural productive forces, quickly restored and developed agricultural production, and prepared conditions for the country's industrialization.
(3) * * * The same effect: consolidating the political power of Xinmin.
Exploration of the socialist road
First, knowledge combing
1. 1. heavy industry; Industry; Industrialization II. Constitution of the people's Republic of China
3. agriculture; Handicraft industry; Capitalist industry and commerce; Public-private partnership; Redemption; Socialist public ownership; primary stage of socialism
Second, 1. * * * Secondary 8;
2. "General route"; "Great Leap Forward"; People's commune movement
Second, consolidate the practice.
/kloc-0 1.B2.C3.D4.B5.B6.⑴ (1) Benefits: realize national industrialization; Planning: Five-year plan
Results: The backward industrial situation in China was changed and the industrial system was established. (2) Problem: One-sided pursuit of high speed, ignoring objective economic laws.
build socialism with chinese characteristics
First, knowledge combing
1. Truth standard; Liberation;
2. No.3 Middle School of the Eleventh Central Committee; Reform and opening up; Socialist modernization 3. 1980, Shenzhen, Xiamen, Shantou and Zhuhai 4.14; Establish a socialist market economic system
5. Thirteenth National Congress; Economic construction; Four cardinal principles; reform and opening-up
Second, consolidate the practice.
1.A2.B3.B4.C5.D
6.( 1) _: Leading the reform and opening up, proposing to build Socialism with Chinese characteristics Thought, etc.
② Metaphor refers to the opening of four special economic zones such as Shenzhen; The Third Plenary Session of the Eleventh Central Committee; Absorb overseas Chinese and foreign capital, introduce science and technology and management experience, and carry out modernization.
(3) The Yellow River Cantata, March of the Volunteers and other interesting gardens.
This is a so-called activity innovation problem, and there is no standard answer, which can cultivate students' innovative consciousness and broaden their horizons. In looking for the answer, it can be said that "nothing, only better". )
There are many answers to this question, such as meetings, people, policies and technology, as long as it is reasonable.
Politics:
Moral cultivation (1)
I.1-5: CBA ad6-10: adbaa
Second, 15. ab blood type
Thirdly, in China, the rights and obligations of citizens are the same: each of us is the subject of enjoying rights and fulfilling obligations. Therefore, it is necessary to strengthen the concept of rights, exercise and safeguard rights according to law, and strengthen the concept of rights and fulfill obligations according to law.
Fourth, the viewpoint is correct; Reason: Same as the answer to the third question.
Verb (abbreviation of verb) ①C Citizens should respect the rights of others when exercising their rights.
(2) B shall exercise its rights in a legal way (reasonable procedure).
(3) It shall not harm the interests of the state, society and the collective.
(1) Rights: ① Right to education; ② Right to life and health; (3) Cultural rights (intellectual property, copyright and intellectual achievements). Obligation: ① obligation to honor parents (support and help parents); (2) the obligation to receive education; (3) the moral obligation to help the elderly (help others).
(2) The answer is the same as the third question.
Moral cultivation (2)
I.1-5: ccbab6-10: cbdbc
Second,
Three. 16. Everyone, whether old or young, smart or dull, rich or poor, whether senior officials or civilians, free or prisoners, enjoys the minimum social status as a "person" and the minimum rights to be respected by others and society. This right is the right of personal dignity. The right of personal dignity is embodied in the right of reputation, portrait, name and privacy.
17. This behavior does not constitute infringement. The news media does not use citizen portraits for profit, nor does it maliciously damage, defile or vilify citizen portraits, or use citizen portraits for personal attacks, so this does not belong to infringement.
Four. 18. This view is wrong. The reason is: (1) No matter who is old or young, smart or dull, rich or poor, no matter whether he is a senior official or a civilian, a free man or a prisoner, he enjoys the minimum social status as a "person" and the minimum right to be respected by others and society. This right is the right of personal dignity. Personal dignity is inviolable, and those who insult will be condemned by social morality. (2) China's relevant regulations protect minors' right to personal dignity. For example, Article 21 of China's Law on the Protection of Minors stipulates that teachers and staff in schools, kindergartens and nurseries shall not impose corporal punishment on minors, corporal punishment in disguised form or other acts that insult personal dignity.
V 19。 Infringe on citizens' right to privacy; (1) When the right to privacy is infringed, you should bravely take up legal weapons, negotiate with the infringer yourself, ask for judicial protection, and ask the infringer to stop the infringement and apologize. If you have caused great mental pain, you have the right to ask for mental compensation. (2) While strengthening the concept of legal system, self-discipline according to law and respecting the privacy of others, we should also strengthen our awareness of self-protection and lock our privacy.
(3) With the increasing popularity of the Internet today, we should master the knowledge of safe online operation when surfing the Internet to avoid personal privacy being browsed and spread in the network.
Intransitive verb 20.( 1) Figure 1: the right to personal dignity; Figure 2: Portrait right; Figure 3: Name right; Figure 4: Honor. (2) Depending on the degree of injury, you can ask them to stop the infringement, apologize, eliminate the influence and compensate for the losses. If the circumstances are serious, they may be investigated for legal responsibility.
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▼ Junior high school new semester study plan
At this beautiful moment, the new semester has begun again. Facing the first ray of sunshine in the morning, I have returned to the beautiful university campus and started a beautiful journey in the new semester.
In the past journey, I once had happy knowledge and sunshine, which have become eternal memories. Now, with the lock, everything in front of us is new. Do you see it? The new semester is waving to us. After several years of training, we are not all soldiers. Wipe off the dust in our hearts, pick up weapons and get ready to go. The goal of the new semester is impacting us!
In the new semester, I have a new learning goal-not to be a giant of language, but to be a master of action! Explore the true meaning of life in the unknown world with the practical spirit of going forward bravely. I know that success depends not on dreams, but on my own actions. ......
Of course, in the new semester, if you want to make new achievements in your studies, you must make unremitting efforts! Pay an effort and get a harvest. Learning is not an interest, but a responsibility. It is something I should do and must do well, and learning is bound to have a burden. Without a bitter and tiring process, there will be no progress and promotion. Isn't this the truth of the past and the future? I turn my joy and sadness into help and motivation for progress, so I will constantly overcome difficulties and make new progress. What we have achieved is our joy, and behind our success is our efforts. No effort, no gain, no effort, no gain. When I step into the university again, I will cherish this precious time to enrich myself and turn my ideal into an irresistible power.
1, study professional courses by yourself. No matter whether you will do this job in the future, since it's time to study, don't be sorry for yourself and study hard. Make more efforts in biology and other subjects. Using spare time to read more books, individuals should strengthen their practical ability and lay a foundation for future social practice.
2, get up early in the morning to read English words, and pass CET-4 this semester. I should know the reason why I didn't do it for the first time: CET-4 is better, but it's not easy to take the exam. ) Recite new concept English and improve your spoken English! At the same time, practice listening, expand the accumulation of vocabulary, and actively prepare for the CET-4.
3. Read more literature books and go to the library! Don't give up your literary dream. We should see more of your works. Have the opportunity to actively write some essays, read more books in the library, actively contribute articles, and often communicate with like-minded friends.
4, reasonable control of time: priorities, people should be conscious, in addition to a proactive attitude, but also learn to arrange their own time, manage their own affairs. There seems to be not much difference between college and high school. I still study every day, and I am still worried about the exam results after every exam ... The only difference is that I spend a lot more time surfing the Internet and sleeping in college, and the pressure is much less. At first, I had this idea. I realized that time is planned reasonably by myself. With the pressure of upgrading from university to undergraduate, I gradually realized that "much more time" is the great difference between university and high school. If you have more time, you need to arrange, plan and manage your own time. In addition to making a timetable, it is more important to "prioritize" when arranging time. ..... Be diligent and write something on the blog to reflect on yourself and think about the problems in life! At the same time, I surf the Internet and visit forums, and actively use my time to study.
5. Pay attention to current events and broaden your horizons! Read more books, newspapers and magazines, and often go out to have a look. Two are near and one is far. Broaden your horizons and make friends. It not only broadens our horizons, but also improves our ability to make friends.
6. Take care of yourself, eat healthily, exercise and learn one or two practical skills. The purpose is to meet more people, (go outside by bike on weekends)!
7. Be politically close to the Party organization. I still want to actively join the party for the simple reason that only by constantly improving my own quality can I have greater success.
8. Feel the joy of hard work and enjoy the joy of victory. This is what I like, and interest is my greatest motivation. Actively participate in your favorite career.
We should set a good goal, stick to our beliefs, never give up, work together for the goal, be wonderful because of our dreams, and go on step by step. Of course, achievements and honors are often enviable and admirable, but "a journey of a thousand miles begins with a single step." In order to make the ideal come true, accumulation is essential. We should start from now, start from dribs and drabs, and step by step towards the grand goal.
The new semester provides us with a brand-new garden, but it needs to be reminded that the laurel of honor is often composed of thorns, and the road to success is often paved with sweat, and the journey is by no means smooth. It needs unswerving pursuit, exuberant enthusiasm, down-to-earth efforts and persistent climbing. Therefore, we should cultivate the spirit of perseverance and hard work. Those who are determined to learn must be mentally prepared, ambitious and enthusiastic about learning, and never lose heart in the face of difficulties and setbacks, reflecting the perseverance of learning!
Mo Bosang said: "People live in hope. When a hope is shattered or realized, there will be new hope. " The new school year is a new expectation, a new hope, a new journey and a new harvest. A new semester, a new starting point and a new look, let's look forward to a better tomorrow and embark on a journey again!
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▼ What are the good study habits?
1, Learn the habit of listening to lectures (1) Don't make small moves in class, don't play with toys and school supplies, and don't do things unrelated to study. (2) Listen carefully to other students' speeches to see if they are correct and have anything to add. (3) Listen to the teacher carefully and practice as required. )
2. The habit of being good at thinking ((1)) Listen carefully, think seriously and speak actively in class. (2) Be good at discovering, express opinions boldly, and take the initiative to ask the teacher for questions that you don't understand. (3) Preview the knowledge before class and mark the questions you don't understand in advance. )
3. The habit of daring to ask questions (1) is diligent in thinking, daring to question, communicating with people, and not afraid of making mistakes. (2) When speaking, stand up straight, articulate and speak Mandarin loudly. )
4, the habit of cooperation with others (1) actively cooperate with classmates and teachers, learn to express their views and opinions, and solve problems together. (2) When communicating with classmates, we should respect the opinions and viewpoints of others. )
5. The habit of reading independently (1)) Develop the good habit of thinking while reading, sketching in circles and writing reading notes, and pay attention to the accumulation of knowledge. (2) Willing to read, willing to make friends with books, and develop good reading habits. (3) Don't read unhealthy books, unhealthy CDs and unhealthy websites. (4) Take good care of books and don't scribble on public books. )
6, the habit of writing carefully (1) Correct reading and writing posture, will write correctly, and achieve "three ones"-one foot off the book, one punch off the table, one inch off the pen tip. (2) Write correctly and generously, keep the surface clean, and do not use correction fluid and correction paper indiscriminately. Words and symbols should be standardized and the format should be beautiful. )
7, the habit of self-evaluation and mutual evaluation (1) In the learning process, students should gradually become the main body of evaluation, and let students learn to encourage evaluation, not only to evaluate themselves, but also to evaluate others. )
8. The habit of collecting information (1) You can actively collect learning-related materials by books, surfing the Internet, field trips, visits and surveys, and broaden your knowledge. (2) The collected data can be analyzed, classified and integrated. )
9. Habit of hands-on operation (1) Students can independently complete all kinds of operation experiments required by textbooks, and the operation steps are correct. )
10, habit of finishing homework on time (1) You can review and consolidate what you learned that day, and carefully finish and check your homework. (2) Pay attention to using what you have learned to solve practical problems and cultivate your own abilities. )
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